Evidence for CP Violation in the Decay D+ -> K-S(0)pi(+)

Tagir Aushev, Ji Hyun Kim, Jing Li, Yiming Li, Zhen Liu, Remi Léandre Albert Louvot, Olivier Schneider, Xiao Wang
2012
Article

Résumé

We observe evidence for CP violation in the decay D+ -> K-S(0)pi(+) using a data sample with an integrated luminosity of 977 fb(-1) collected by the Belle detector at the KEKB e(+) e(-) asymmetric-energy collider. The CP asymmetry in the decay is measured to be (-0.363 +/- 0.094 +/- 0.067)%, which is 3.2 standard deviations away from zero, and is consistent with the expected CP violation due to the neutral kaon in the final state.

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https://infoscience.epfl.ch/record/180427?ln=fr

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